/** @file
 * Copyright (c) 2021-2025, Goldfish64. All rights reserved.
 * SPDX-License-Identifier: BSD-3-Clause
**/

/*
 * Hyper-V device SSDT to disable unsupported devices under macOS on Windows Server 2019 / Windows 10 and newer.
 *
 * Windows 10 and newer define various objects conditionally, which are
 * unsupported in older versions of macOS. All objects are enabled regardless
 * of state in older versions, causing slow boot behavior and crashes during boot caused by AppleACPIPlatform.
 *
 * Windows 10 and newer also use ACPI0007 Device objects for CPUs, which macOS cannot detect.
 * This SSDT redefines the first 64 as Processor objects.
 * This may cause issues with other operating systems.
 * 
 * This SSDT defines _STA methods for all affected objects and disables them entirely, or enables only if
 * the approprate register is set (enabled in Hyper-V).
 *
 * On Windows Server 2012 R2 / Windows 8.1 and older this SSDT is unnecessary and can be disabled along with associated patches.
 *
 * Requires the following ACPI patches:
 * (1) Base:            \_SB.VMOD.TPM2
 *     Comment:         _STA to XSTA rename (Hyper-V TPM)
 *     Count:           1
 *     Find:            5F535441 (_STA)
 *     Replace:         58535441 (XSTA)
 *     TableSignature:  44534454 (DSDT)
 * (2) Base:            \_SB.NVDR
 *     Comment:         _STA to XSTA rename (Hyper-V NVDIMM)
 *     Count:           1
 *     Find:            5F535441 (_STA)
 *     Replace:         58535441 (XSTA)
 *     TableSignature:  44534454 (DSDT)
 * (3) Base:            \_SB.EPC
 *     Comment:         _STA to XSTA rename (Hyper-V EPC)
 *     Count:           1
 *     Find:            5F535441 (_STA)
 *     Replace:         58535441 (XSTA)
 *     TableSignature:  44534454 (DSDT)
 * (4) Base:            \_SB.VMOD.BAT1
 *     Comment:         _STA to XSTA rename (Hyper-V battery)
 *     Count:           1
 *     Find:            5F535441 (_STA)
 *     Replace:         58535441 (XSTA)
 *     TableSignature:  44534454 (DSDT)
 */
DefinitionBlock ("", "SSDT", 2, "ACDT", "HVDEV", 0x00000000)
{
  //
  // EC fields in DSDT
  //
  External (SCFG, FieldUnitObj)
  External (TCFG, FieldUnitObj)
  External (NCFG, FieldUnitObj)
  External (SGXE, FieldUnitObj)
  External (BCFG, FieldUnitObj)
  External (PCNT, FieldUnitObj)

  //
  // Device and method objects in DSDT
  //
  External (\_SB.UAR1, DeviceObj)
  External (\_SB.UAR2, DeviceObj)
  External (\_SB.VMOD.TPM2, DeviceObj)
  External (\_SB.VMOD.TPM2.XSTA, MethodObj)
  External (\_SB.NVDR, DeviceObj)
  External (\_SB.NVDR.XSTA, MethodObj)
  External (\_SB.EPC, DeviceObj)
  External (\_SB.EPC.XSTA, MethodObj)
  External (\_SB.VMOD.BAT1, DeviceObj)
  External (\_SB.VMOD.BAT1.XSTA, MethodObj)
  External (\_SB.VMOD.AC1, DeviceObj)

  //
  // Duplicated from Windows 8.1 Hyper-V Generation 2 DSDT.
  // Defines old-style Processor objects that macOS can use.
  //
  // PSTA will exist on 8.1 and older, and should block this SSDT from
  // being loaded if used on older Hyper-V versions.
  //
  Scope (\_SB)
  {
    Method (PSTA, 1, Serialized)
    {
      If (LAnd (_OSI ("Darwin"), LLessEqual (Arg0, PCNT)))
      {
        Return (0x0F)
      }

      Return (Zero)
    }

    Processor (P001, 0x01, 0x00000000, 0x00)
    {
      Name (PNUM, 0x01)
      Method (_STA, 0, Serialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P002, 0x02, 0x00000000, 0x00)
    {
      Name (PNUM, 0x02)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P003, 0x03, 0x00000000, 0x00)
    {
      Name (PNUM, 0x03)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P004, 0x04, 0x00000000, 0x00)
    {
      Name (PNUM, 0x04)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P005, 0x05, 0x00000000, 0x00)
    {
      Name (PNUM, 0x05)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P006, 0x06, 0x00000000, 0x00)
    {
      Name (PNUM, 0x06)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P007, 0x07, 0x00000000, 0x00)
    {
      Name (PNUM, 0x07)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P008, 0x08, 0x00000000, 0x00)
    {
      Name (PNUM, 0x08)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P009, 0x09, 0x00000000, 0x00)
    {
      Name (PNUM, 0x09)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P010, 0x0A, 0x00000000, 0x00)
    {
      Name (PNUM, 0x0A)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P011, 0x0B, 0x00000000, 0x00)
    {
      Name (PNUM, 0x0B)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P012, 0x0C, 0x00000000, 0x00)
    {
      Name (PNUM, 0x0C)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P013, 0x0D, 0x00000000, 0x00)
    {
      Name (PNUM, 0x0D)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P014, 0x0E, 0x00000000, 0x00)
    {
      Name (PNUM, 0x0E)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P015, 0x0F, 0x00000000, 0x00)
    {
      Name (PNUM, 0x0F)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P016, 0x10, 0x00000000, 0x00)
    {
      Name (PNUM, 0x10)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P017, 0x11, 0x00000000, 0x00)
    {
      Name (PNUM, 0x11)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P018, 0x12, 0x00000000, 0x00)
    {
      Name (PNUM, 0x12)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P019, 0x13, 0x00000000, 0x00)
    {
      Name (PNUM, 0x13)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P020, 0x14, 0x00000000, 0x00)
    {
      Name (PNUM, 0x14)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P021, 0x15, 0x00000000, 0x00)
    {
      Name (PNUM, 0x15)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P022, 0x16, 0x00000000, 0x00)
    {
      Name (PNUM, 0x16)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P023, 0x17, 0x00000000, 0x00)
    {
      Name (PNUM, 0x17)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P024, 0x18, 0x00000000, 0x00)
    {
      Name (PNUM, 0x18)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P025, 0x19, 0x00000000, 0x00)
    {
      Name (PNUM, 0x19)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P026, 0x1A, 0x00000000, 0x00)
    {
      Name (PNUM, 0x1A)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P027, 0x1B, 0x00000000, 0x00)
    {
      Name (PNUM, 0x1B)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P028, 0x1C, 0x00000000, 0x00)
    {
      Name (PNUM, 0x1C)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P029, 0x1D, 0x00000000, 0x00)
    {
      Name (PNUM, 0x1D)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P030, 0x1E, 0x00000000, 0x00)
    {
      Name (PNUM, 0x1E)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P031, 0x1F, 0x00000000, 0x00)
    {
      Name (PNUM, 0x1F)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P032, 0x20, 0x00000000, 0x00)
    {
      Name (PNUM, 0x20)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P033, 0x21, 0x00000000, 0x00)
    {
      Name (PNUM, 0x21)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P034, 0x22, 0x00000000, 0x00)
    {
      Name (PNUM, 0x22)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P035, 0x23, 0x00000000, 0x00)
    {
      Name (PNUM, 0x23)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P036, 0x24, 0x00000000, 0x00)
    {
      Name (PNUM, 0x24)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P037, 0x25, 0x00000000, 0x00)
    {
      Name (PNUM, 0x25)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P038, 0x26, 0x00000000, 0x00)
    {
      Name (PNUM, 0x26)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P039, 0x27, 0x00000000, 0x00)
    {
      Name (PNUM, 0x27)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P040, 0x28, 0x00000000, 0x00)
    {
      Name (PNUM, 0x28)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P041, 0x29, 0x00000000, 0x00)
    {
      Name (PNUM, 0x29)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P042, 0x2A, 0x00000000, 0x00)
    {
      Name (PNUM, 0x2A)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P043, 0x2B, 0x00000000, 0x00)
    {
      Name (PNUM, 0x2B)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P044, 0x2C, 0x00000000, 0x00)
    {
      Name (PNUM, 0x2C)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P045, 0x2D, 0x00000000, 0x00)
    {
      Name (PNUM, 0x2D)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P046, 0x2E, 0x00000000, 0x00)
    {
      Name (PNUM, 0x2E)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P047, 0x2F, 0x00000000, 0x00)
    {
      Name (PNUM, 0x2F)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P048, 0x30, 0x00000000, 0x00)
    {
      Name (PNUM, 0x30)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P049, 0x31, 0x00000000, 0x00)
    {
      Name (PNUM, 0x31)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P050, 0x32, 0x00000000, 0x00)
    {
      Name (PNUM, 0x32)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P051, 0x33, 0x00000000, 0x00)
    {
      Name (PNUM, 0x33)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P052, 0x34, 0x00000000, 0x00)
    {
      Name (PNUM, 0x34)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P053, 0x35, 0x00000000, 0x00)
    {
      Name (PNUM, 0x35)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P054, 0x36, 0x00000000, 0x00)
    {
      Name (PNUM, 0x36)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P055, 0x37, 0x00000000, 0x00)
    {
      Name (PNUM, 0x37)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P056, 0x38, 0x00000000, 0x00)
    {
      Name (PNUM, 0x38)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P057, 0x39, 0x00000000, 0x00)
    {
      Name (PNUM, 0x39)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P058, 0x3A, 0x00000000, 0x00)
    {
      Name (PNUM, 0x3A)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P059, 0x3B, 0x00000000, 0x00)
    {
      Name (PNUM, 0x3B)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P060, 0x3C, 0x00000000, 0x00)
    {
      Name (PNUM, 0x3C)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P061, 0x3D, 0x00000000, 0x00)
    {
      Name (PNUM, 0x3D)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P062, 0x3E, 0x00000000, 0x00)
    {
      Name (PNUM, 0x3E)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P063, 0x3F, 0x00000000, 0x00)
    {
      Name (PNUM, 0x3F)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }

    Processor (P064, 0x40, 0x00000000, 0x00)
    {
      Name (PNUM, 0x40)
      Method (_STA, 0, NotSerialized)
      {
        Return (PSTA (PNUM))
      }
    }
  }

  //
  // Older versions of macOS before 10.6 do not support conditional definitions
  // and will always expose the objects.
  // Re-evaluate in each object's _STA function as a workaround.
  //
  // Serial port devices.
  //
  If (LGreater (SCFG, Zero))
  {
    Scope (\_SB.UAR1)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (SCFG, Zero))
        {
          Return (0x0F)
        }

        Return (Zero)
      }
    }

    Scope (\_SB.UAR2)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (SCFG, Zero))
        {
          Return (0x0F)
        }

        Return (Zero)
      }
    }
  }

  //
  // TPM device.
  //
  If (LGreater (TCFG, Zero))
  {
    Scope (\_SB.VMOD.TPM2)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (TCFG, Zero))
        {
          Return (\_SB.VMOD.TPM2.XSTA())
        }

        Return (Zero)
      }
    }
  }

  //
  // NVDIMM device.
  //
  If (LGreater (NCFG, Zero))
  {
    Scope (\_SB.NVDR)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (NCFG, Zero))
        {
          Return (\_SB.NVDR.XSTA())
        }

        Return (Zero)
      }
    }
  }

  //
  // Enclave Page Cache device.
  //
  If (LGreater (SGXE, Zero))
  {
    Scope (\_SB.EPC)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (SGXE, Zero))  
        {
          Return (\_SB.EPC.XSTA())
        }

        Return (Zero)
      }
    }
  }

  //
  // Battery and AC adapter device.
  //
  If (LGreater (BCFG, Zero))
  {
    Scope (\_SB.VMOD.BAT1)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (BCFG, Zero))
        {
          Return (\_SB.VMOD.BAT1.XSTA())
        }

        Return (Zero)
      }
    }

    Scope (\_SB.VMOD.AC1)
    {
      Method (_STA, 0, NotSerialized)
      {
        If (LGreater (BCFG, Zero))
        {
          Return (0x0F)
        }

        Return (Zero)
      }
    }
  }
}